Cable clamp



Get. 21, 1930. sc 1,778,984

CABLE CLAMP Filed Sept. 14, 1929 Robert E, Schu/er Inventor By 4 M llorney.

Patented Get- 21.1930 i ROBERT E. SCHULER, QEBIR MI GHAMQ iI.ii1Ai/r A,-,ii,s srriitkinf. moleivmsnsoiv assist woexs no n CORPORATION-{OFALABAMA Application filed September sijiaino. 392.559.

My invention relates to clamps for uniting cables, such as electric conductors, and par- .ticularly' toclamps for clamping cables together at right angles'to each other, and has 5, for its object the provision of a device ofthe character designated which shall be simple and economical of manufacture and one which may be readily appliedand removed.

A further object of my invention is to prov vide a clamp for joining cables at right angles toeach other in which an'exceptionally good electrical contactis made with both cableswithout the use'of solder and which may be readily applied. andremoved after the cables are in place without the necessity of thread I ing either of the clamp members onto a cable.

Briefly, my invention comprises cooperat-' ing clamp members hav ng-longitudinal and transversely extending grooves for receiving the cables to be clampedand av U-bolt for drawing the clamp members together. I The U bolt is so located with respect to the grooves that the clamp members are drawn into tight line contact With the cables thus insuring max- I I imum conductivity through the clamp. A device embodying features of my lnvention is illustrated in the accompanying drawings forming a part of this application in which I Y I Fig. 1 is arear elevational view of the device with the cables clamped in place;

Fig. 2 is aside elevationwith the U bolt nuts loosened showing the method of assem bling or disassembling the deviceg fl" Fig. 3 is a view similar to Fig. 2' showing the U bolt nuts tightened up with thecables clamped;

Fig. 4 is a front elevation of thedevic ei and Fig. 5 is a plan viewiof the device.

'derstanding of my invention l-sh'ow cables 10'and 11 extending at right anglesto each other and which are to be secured together.

My'clamping device comprises a pair of 007- operating clamp members 12 and13 somewhat triangular in shape when viewedin front or rear elevation. The clamp member 12 is provided with a longitudinally extending groove 14 on the outer side thereof and extending centrally of the member. t is also provided Referring to the drawings for a better uns with a transversely extendinggroove 16 on? I the inner side nearithe' upper end thereof as;

seen in the drawing. The grooves lrand lfi I are adapted to receive the cablesll and 10', respectively,- which arefthereby clamped to'-;

get-her.

Theclamp-member is similar in shape to'th'e clamp inember-12but is providedwith' a=itransversely extending-groove 17"oppos1te the groove. l6-oi' the member 12 The'lowera boss 18 adaptedto bear; against the lower.

end of the clamp member' l2 when thep'arts I aIre ass'embled; I Extending-through-both o t -theclamp membolt holes being located intermediate; the V endof the clamp memberlfi-is provided'with bers are aligned bolts 'holesjlt)and'21, .the

ends oftheblamp members and adjacent I to;

the-transverselyextending grooves '16 and: -17;

' The U bolt 22; extends through the; holes 19 5 and-21 and embraces the cable 11 Fitting I on -the' end's' ofthe U b'oltiare nutsq23 "and 24 whicln when tightened down, areheld against loosening by means of lock washers 251' and 26: Th position o'fthe Ubolt with respect 1 to.the grooves"16 and-1 7 permits the cable 10: tobe drawninto the grooves by-tighte'ning the nuts; 23 and-24 ,without further efiort to" l'ooate the 'cablelO in proper clampi -ng posi- As will be seen: from jaflconsiderat'ion of Figs: 2r-and 3; when the parts are assembled with the Yoable 1-1 lyingin the groove lland the cable 10; resting inithe grooves 16 and 17, when the nuts on fthe- U: bolt are tightened upby :th6i b0ss 18- .a'c'ts :ias aha-cram for the' member 13 to draw, the clamp members 12 and. 13 .integtt he lin contact with the cable 10.. iiAt thel-same itiiheiithe Ui bolti 22 draws the cable 11 "into tightline engagement with themember 12. W ith the cables thus clamped I y it willbeapparent that electrical current 1 i may flow through the short path defined by the 'member 12 andthus meets with a mini-Q mum of resistance. bolt between the cable 10 and the boss 18 serves to hold the ends of the member'12 in tight engagement with the cable l1 at all times.

The position of the U I It will be understood" that the term cable 3 Q 1;; apparent thatthere is nothing about'my' im-" in this specification, is intended to cover any equivalent members to be clamped together and is employed for simplicity of description. It will be apparent from theiore- 7,

going description that my improved clamp may be readily assembled Without the necessity of threading the cablestobe clamped 7 through either of the clamp members. It i will furthermore be apparent thatia tight m electrical'contact over-a considerable surface of both of the cables-is obtained by my device, i

' so that it is not necessary after assembly, to minimize electrical resistance, to "solder the clamp to the cables. It will furthermorebe provedcla-mp thatdependsuponapoint con V tact either for conducti'vity or compression Purpo e v V a p NVhile have shown my invention in but one form,it'will be obvious to thoseskilled in the art that it is not so limited but is susceptible of various changes and modifica 'tions, ithout departing from the spirit thereof, and I desire therefore that only such limitations shall be placed thereupon as are imposed bythe prior art, or as are specifically set forth in the appended claims. WhatIclaimis: V v V r 1. A cable clamp comprising a pair of cooperating clamp membersoneof which has a longitudinally extending groove 'on one. side [and a; transversely extending'groove on the other-"side near one end, the other clamp member having a transversely extending groove opposed to the transversely extending groove of the first mentioned mem her, a longitudinally extending reinforcing V rib on the'outer side ofthe other clamp mem- 7 her, a-U bolt extending through bothjclamp as members in-ter'mediatetheir ends and embracing one of the cables, nuts on both legs of the U bolt to draw the members towardeachother and a boss on one ofthe clamp members bearing against the; other clampmember near the end opposite the trans-i vcrsely extending grooves.

2. A cable clamp asset .iorth inlclaim 1, in Which the'transversely extending grooves are located 'adjacent'to'the U bolt whereby V an the cable to be clamped in said grooves is automatically positioned in the grooves whenv V the clampis tightened; j i a V In testimony whereof-'Iaflix myisign atureL 1 1.

' ROBERT'E. SGHULERH 

